specification - taoglas · spe-13-8-092/h/pk page 3 of 22 2. specification electrical gps/galileo...
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Specification
Part No. : GGBLA.01.A
Product Name : Unifier GPS/GLONASS/GALILEO/BEIDOU
Ceramic SMD Antenna
Feature : 3.2*1.6*0.5mm
Low profile Ceramic Loop antenna
Omnidirectional
RoHS Compliant
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1. Introduction
Taoglas have developed a unique ceramic miniature loop antenna series for
GPS-GLONASS-GALILEO-BEIDOU applications. At 3.2*1.6*0.5mm, the Unifier
GGBLA.01.A Loop antenna is a miniature edge mounted SMD antenna, designed for
small space requirements. Typical applications are small sized automotive navigation
or position tracking systems and hand-held devices when GNSS function is needed.
The radiation pattern is more omnidirectional than traditional patch antennas. The
Unifier antenna series wide bandwidth allows high efficiency, stable reception on all
three GPS, GLONASS and BeiDou bands from 1555MHz to 1602MHz.
Efficiencies of 64% to 85% are achievable. Peak gain of 3.3dBi places this antenna
gain performance within the range of a much larger 15mm to 18mm patch antennas.
Based on the loop effect this antenna works best when placed on the center of the
edge of the board, but can still work better than traditional linear polarized chip
antennas even when placed at corners as substitute.
The Unifier GGBLA.01.A is delivered on tape and reel and now allows M2M customers
to use an omnidirectional antenna in devices where orientation of the product is
unknown. Like all small antennas, care must be taken to ensure the device
ground-plane layout and antenna matching has been done correctly, Taoglas offers
professional Gerber review, transmission line design, general integration support and
final matching service of the GGBLA.01.A on your device board at our regional labs
worldwide. Contact your regional Taoglas sales office for immediate support.
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2. Specification
ELECTRICAL GPS/GALILEO BAND
Working Frequency* 1575.42MHz
VSWR 2.0 : 1 max
Polarization Linear
Gain Peak gain: 3.2 Typ.
Impedance 50
ELECTRICAL GLONASS BAND
Working Frequency* 1598~1608MHz
VSWR 2.0 : 1 max
Polarization Linear
Gain Peak gain: 2.6 Typ.
Impedance 50
ELECTRICAL COMPASS-BEIDOU BAND
Working Frequency* 1561 MHz
VSWR 2.0 : 1 max
Polarization Linear
Gain Peak gain: 2.8 Typ.
Impedance 50
MECHANICAL
Dimensions 3.2 x 1.6 x 0.5 mm
Material Ceramic
ENVIRONMENTAL
Operation Temperature -40°C to 85°C
Storage Temperature -40°C to 105°C
Humidity 20% to 70%
* Measured on a 80*40mm ground plane
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3. Antenna Characteristics
3.1. Return Loss
3.2. VSWR
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3.3. Efficiency
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3.4. Efficiency and Gain Table
Frequency (MHz) 1560 1561 1562 1563 1564 1565 1566
Efficiency (dB) -1.68 -1.29 1.18 -1.10 -1.02 -0.97 -0.94
Efficiency (%) 67.93 74.32 76.22 77.64 79.09 80.00 80.56
Gain (dBi) 2.82 2.90 2.99 3.05 3.10 3.14 3.17
Frequency (MHz) 1567 1568 1569 1570 1571 1572 1573
Efficiency (dB) -0.91 -0.88 -0.85 -0.79 -0.77 -0.76 -0.78
Efficiency (%) 81.11 81.67 82.24 83.38 83.77 83.96 83.58
Gain (dBi) 3.20 3.21 3.24 3.29 3.29 3.30 3.28
Frequency (MHz) 1574 1575 1576 1577 1578 1579 1580
Efficiency (dB) -0.79 -0.79 -0.78 -0.76 -0.76 -0.75 -0.77
Efficiency (%) 83.38 83.43 83.58 83.96 83.96 84.16 83.77
Gain (dBi) 3.29 3.29 3.29 3.29 3.29 3.28 3.26
Frequency (MHz) 1581 1582 1583 1584 1585 1586 1587
Efficiency (dB) -0.84 -0.84 -0.85 -0.85 -0.87 -0.89 -0.93
Efficiency (%) 82.36 82.43 82.24 82.24 81.86 81.49 80.74
Gain (dBi) 3.16 3.17 3.14 3.12 3.11 3.08 3.05
Frequency (MHz) 1588 1589 1590 1591 1592 1593 1594
Efficiency (dB) -0.94 -0.98 -1.05 -1.04 -1.04 -1.04 -1.07
Efficiency (%) 80.55 79.82 78.54 78.72 78.72 78.72 78.18
Gain (dBi) 3.03 2.99 2.93 2.93 2.93 2.90 2.88
Frequency (MHz) 1595 1596 1597 1598 1599 1600 1601
Efficiency (dB) -1.10 -1.17 -1.19 -1.21 -1.21 -1.24 -1.30
Efficiency (%) 77.64 76.43 76.05 75.70 75.70 75.18 74.14
Gain (dBi) 2.84 2.82 2.77 2.75 2.74 2.71 2.66
Frequency (MHz) 1602 1603 1604 1605 1606 1607 1608
Efficiency (dB) -1.65 -1.45 -1.54 -1.60 -1.67 -1.73 -1.78
Efficiency (%) 71.98 71.63 70.16 69.20 68.09 67.16 66.39
Gain (dBi) 2.58 2.54 2.46 2.41 2.36 2.31 2.28
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4. 3D Antenna Radiation Pattern
4.1. BeiDou 1560MHz (80*40mm Ground Plane)
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4.2. GPS/GALILEO 1575MHz (80*40mm Ground Plane)
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4.3. GLONASS 1602MHz (80*40mm Ground Plane)
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5. Mechanical Drawing (Unit: mm)
5.1. Drawing EVB
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5.2. Antenna Drawings
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6. Layout Guide
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7. Frequency tuning
7.1. Antenna tuning
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7.2. Matching Circuit (center frequency 1575.42Mhz @
80*40mm Ground)
System Matching Circuit Component
Location Description Vendor Tolerance
1 0.8 pF DARFON (0402) ±0.1pF
2 2.7 pF DARFON (0402) ±0.1pF
3 N/A - -
Fine Tuning
Element 4 22 pF DARFON (0402) ±0.1pF
Fine Tuning
Element 5 0.5 pF DARFON (0402) ±0.1pF
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7.3. Fine tuning element vs. Center Frequency
8. Recommended Reflow Profile
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9. Packaging
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9.1. Reel Drawing
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Taoglas makes no warranties based on the accuracy or completeness of the contents of this document and
reserves the right to make changes to specifications and product descriptions at any time without notice.
Taoglas reserves all rights to this document and the information contained herein.
Reproduction, use or disclosure to third parties without express permission is strictly prohibited.
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